CVE-2019-8264: kaspersky lab ultravnc
CVSS: 9.8v3.0CriticalModified
Published 09-03-2019Last modified 16-09-2024
Vulnerability summary
CVE-2019-8264 is a critical (CVSS 9.8) vulnerability in kaspersky lab ultravnc. EPSS estimates a 3.13% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
3.13%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-03-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
UltraVNC revision 1203 has out-of-bounds access vulnerability in VNC client inside Ultra2 decoder, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1204.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
3.13%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.13% on 19-09-2026
19-09-202619-10-2026
EPSS score3.13%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-788Access of Memory Location After End of BufferThe product reads or writes to a buffer using an index or pointer that references a memory location after the end of the buffer.
- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
2 vendors · 2 products
References
6 links- cert-portal.siemens.com/productcert/pdf/ssa-927095.pdfX Refsource CONFIRM
- www.us-cert.gov/ics/advisories/icsa-20-161-06X Refsource MISC
- cert-portal.siemens.com/productcert/pdf/ssa-940818.pdfX Refsource CONFIRM
- cert-portal.siemens.com/productcert/pdf/ssa-286838.pdfX Refsource CONFIRM
us-cert.cisa.gov/ics/advisories/icsa-21-131-11X Refsource MISC